Study of academic instruction for disadvantaged students : what is taught, and how, to the children of poverty : interim report from a two-year investigation / prepared by Michael S. Knapp ... [et al. ; prepared ... under contract by SRI International ... and Policy Studies Associates ... contract no. LC88054001]

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Study of academic instruction for disadvantaged students : what is taught, and how, to the children of poverty : interim report from a two-year investigation / prepared by Michael S. Knapp ... [et al. ; prepared ... under contract by SRI International ... and Policy Studies Associates ... contract no. LC88054001]